Title :
PRML process of multilevel run-length-limited modulation recording on optical disc
Author :
Jiang, Sun-How ; Lo, Feng-Hsiang
Author_Institution :
Opto-Electron. & Syst. Labs., Ind. Technol. Res. Inst., Hsinchu, Taiwan
Abstract :
We introduce partial-response maximum-likelihood (PRML) signal process to increase the accuracy of reading multilevel signal from a multilevel run-length-limited (ML-RLL) recorded disc. The reason is that the traditional slicer detection is no longer suitable for detecting ML-RLL signal. In this paper, we also present several partial-response methods and their corresponding maximum-likelihood sequential estimation (MLSE) rules for ML-RLL modulation signal detecting.
Keywords :
maximum likelihood sequence estimation; modulation; optical disc storage; signal detection; PRML; intersymbol interference; maximum-likelihood sequential estimation; multilevel run-length-limited modulation recording; multilevel run-length-limited recorded disc; optical data storage; optical disc; partial-response maximum-likelihood; partial-response methods; slicer detection; Disk recording; Intersymbol interference; Maximum likelihood detection; Maximum likelihood estimation; Optical modulation; Optical recording; Optical signal processing; Signal detection; Signal processing; Viterbi algorithm; Inter-symbol interference (ISI); multilevel run-length-limited (ML-RLL) modulation; optical data storage; partial-response maximum-likelihood (PRML);
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2004.842015
